[Spce-user] Fwd: Re: Blacklist t.38 fax codec

[Leopoldo Iglesia]

Ok. "has_totag" where is located ??

El 20/06/2014 13:35, Daniel Grotti escribió:
> I have nothing ready to give you right now.
> Basically on kamailio proxy you should match a Re-invite (using the 
> "has_totag") and check if SDP contains t38 headers/codec (just have a 
> look how the T38 reinvite looks like).
> So, if you receive a re-invite with T38 headers into SDP, just send 
> back a 488 reply.
>
> Daniel
>
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>
> On 06/20/2014 01:28 PM, Leopoldo Iglesia wrote:
>> Fine, how can I do this hack? cause endpoints is impossible to mod 
>> config, so they are rented and provisioned by an ftth operator.
>>
>> El 20/06/2014 13:23, Daniel Grotti escribió:
>>> Hi,
>>> I think you need to avoid to forward the T38 Re-INVITE, so you 
>>> should hack your SPCE in order to reply to the T38 re-invite with a 
>>> "488 Not acceptable here", for example.
>>> So the sender SHOULD fallback to G711.
>>> Anyway, the best solution if you have endpoint with t38 enabled but 
>>> they don't work well, is to disable t38.
>>>
>>>
>>> Daniel
>>>
>>>
>>>
>>> On 06/20/2014 01:15 PM, Leopoldo Iglesia wrote:
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>>>> > But both endpoints support it, that is the problem and the only > 
>>>> scenario when it fails, so i want SPCE not to send Fax negotiation 
>>>> to > endpoint,.
>>>>
>>>>
>>>>
>>>>  El 20/06/2014 12:12, Daniel Grotti escribió: >> Hi, >> that's 
>>>> strange, if one of the endpoints try to switch to t38 and the >> 
>>>> other endpoint doesn't support it, they should fallback to G711. >> 
>>>> >> Daniel >> >> >> >> >> >> >> On 06/20/2014 01:33 AM, Leopoldo 
>>>> Iglesia wrote: >>> How can I, blacklist t.38 to avoid endpoints to 
>>>> try t38 negotiation? >>> >>> When i call from ericcson ont to fax 
>>>> capable endpoint, it try to >>> connect t38 fax and There is no 
>>>> voice. >>> >>> Thanks >>> >>> Leopoldo iglesia >>> >>> 
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